Window-screen.



B. C. LAUER.

WINDOW SCREEN.

APPLICATION FILED MAR. 23. 1911.

1 ,255,025 Patented Jan. 29, 1918.

E l-- INvENToR WHNESSES m/J; -E ez/azz'z o/we/f f7 WIM@ VBI ATTORN EY BENJ'IMAN CASPER LAUER. 0F` GERMAN TOWN, PENNSYLVANIA.

WINDOW-SCREEN.

Specification of Letters Patent.

lPatented Jan. 29, 1915.

Application led March 23, 1917. Serial No. 156,978.

To all whom t may concern.'

Be it known that I, BENJIMAN CAsiER LAUER, a citizen of the United States, residing at Germantown, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in lVindow-qcreens, of which the following is a specification.

This invention relates to improvements 1n window screens and more particularly to flexible screens of the roller type.

T he main object of the invention is to provide a screen constructed to be fastened to a window sash so as to be brought into use when the sash is raised and automatically coiled upon a roller when the sash is lowered.

Another object is to provide simple and etlicient means for attaching the screen to or detaching it from a window sash, either ofy which operations may be easily and quickly effected.

With the foregoing and other objects in View, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes inthe precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of theffin'vention.

In the accompanying drawings: Y

-l4`igure 1 represents a front elevation of the lower portion of a window frame and sash with this improved screen shown applied and in operative position,

Fig. 2 is a vertical section taken on the line 2-2 of Fig. l, and

Fig. 3 is a horizontalsection taken on the line 3 3 of Fig. 1.y

In the embodiment illustrated, a window frame F of any approved construction is shown having the usual lower sash l mounted therein and with which the screen 2 embodying this invention is shown connected.

This window sash l has its side edges channeled or groove/d as' shown at 3, in which channels are designed to project combined weather strips and screen guides 4. These screen guides are formed by folding a strip of metal longitudinally to form transversely spaced ribs 5 which constitute the guides for the screen as is shown clearly in Fig. 3. Plates carrying these guides are secured to the stiles of the window frame by screws or other suitable fastening'elements and form in connection with the grooves in the sash a dust and weather-proof connection between the sa sh and the frame and also an insect-proof connection between the screen and the frame when the sash is raised.

The lower edge of the sash rail 6 is longitudinally channeled midway its width as shown at 7 to receive a metal binder 8 carried'by the upper end of the screen 2 as is shown clearly in Fig. 2 and is provided with pockets or sockets 15 which open upwardly from groove 7 and are designed for a purpose to be described. This metal binder 8 is secured to'the upper edge of the screen 2 by any suitable means and has projecting upwardly therefrom a plurality of metal arms or tongues 9, any 4desired number of which may be employed, according to the width of the window to which the screen is to be applied, two being here shown. These tongues 9 have apertured terminals to receive the threaded stem 11 of a connector l() which is designed for removably attaching the screen-to the sash.l This connector 10 has a head 12 carried by the outer end of the stem 1l, said stem having a shoulder 13 formed adjacent said head' and which is designed to abut against a metal wear plate 14 secured to the outer face of'the lower sash rail 6. This threaded stem passes transversely through the outer portion or-face of the sash rail and enters the aperture in the tongue 9 of the metal binder 8 and enters a threaded bore in sash rail 6 on the opposite side of socket 15 and is designed for detachably connecting the screen to the Sash.l

The screen 2 is wound on a spring roller 16, similar to the ordinary shade roller in common use and on which the screen is automatically wound when the sash 1 is lowered (see Fig. 2). This roller is mounted ina chamber 17 formed below the window sill and access may be had to said chamber by removing the apron of the sill'when the device is used in connection with a frame structure, said apron being detachably connected for this purposev or the sill may be made with a detachable plate to afford access to the chamber so that should the roller become broken or required to be removed for any purpose, it may be easily accomplished by 'an unskilled person. A

The roller 16 is so positioned in the chamber 17, and the binding strip 8 with its tongues 9 is made of such a width that these tongues will project above the upper face @E tenaces of the window ,sill so that when the window sash 1 is lowered they will enter the sockets l5 formed in said sash and be positioned ready for engagement by the screw threaded 5 shanks of the connectors l0 without necessitating any special adjustment of these parts. lt will thus be seen that when it is desired to raise-this window sash independently of the screen, all that is necessary is to unscrew l the connectors 10 suciently to disengage the stem thereof from the tongues 9 ot' the screen and the sash may then be raised or lowered without in' any way a'ecting the screen. When it is desired to again connect l the screen to the sash, all thatis necessary `is to lower the sash until the tongues 9 on the screen enter the sockets in the lower sash rail, and then by screwing in the connectors 10, the screen will be again secured to the sash and may be raised and lowered simultaneously therewith.

lt will thus be seen that by providing the combined weather strips and guides for the side edges of the window screen, that the screen will be connected entirely around the' opening formed by the raising of the sash so as to prevent the entrance of any insects at an point. This strip will also operate to e `ectively eliminate drafts in the same manner as an ordinary weather strip operates when the sash is lowered.

While this improved screen is shown in connection `with the lower sash only of a window, it is to be understood that a similar screen is to be employed in connection with the upper sash and it may be connected with Said sash in the same manner that the screen here shown is connected with the lower sash, or it may he connected by tlat headed screws instead of the connectors "l0 here shown, as obviously the necessity for disengaging the @upper screen for the same reason that the lower screen will need to be disengaged, does not exist.

From the foregoing description, taken in connection with the accompanying drawings, the advantages of the construction and of the method of operation will be readily apparent tothose skilled in the art to which the invention appertains and while l have described the principle of operation of the invention together with the device which l now consider to be ythe best embodiment thereof, ll desire to have it understood that the device shown is merely illustrative and that such changes may be made as are within the scope of the claimed invention.

llclaim:

rll`he combination with a window sash having longitudinal grooves in its side rails, of a frame having stiles each provided with a combined weather strip and screen guide, said guides each comprising a metal strip folded longitudinally upon itself at transversely spaced intervals to form laterally spaced ribs projecting at right kangles from. said strip and which are designed to enter the grooves in the sash rails, and a screen having means tor connection to the lower sash rail with its side edges positioned to enter said guides between said ribs.

lin testimony whereof il aiiix my signature in presence of two witnesses.

`BJENJllMAN CASPER BAUER.

Witnesses Ctres. J Somieres, AUG. EVERHARDT, Sr. 

